Device for restraining AC transformer DC magnetic bias current
Title：
Device for restraining AC transformer DC magnetic bias current
Application Number：
 200610011935
Application Date：
 2006/05/19
Announcement Date：
 2006/12/27
Pub. Date：
Publication Number：
 1885658
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 81[China|guangzhou]
IPC：
 H02H 7/04, H01F 27/34
Applicant(s)：
 Southern Power Grid Technology Research Center
Inventor(s)：
 Zhao Jie, Zeng Rong, Li Xiaolin, He Jinliang, Wang Qi, Lu Jinzhuang, Niu Ben
Key Words：
 restrain, AC transformer, DC, magnetic bias current
Abstract：
 The related device connected between neutral point of transformer and substation ground network in series to inhibit dc bias current of ac transformer comprises: a resistor, a protector with two conductors every with one end connected to two electrodes and another end connected to the circuit. This invention operates in large scale as 500A-10kA current for HVDC system, and has simple structure and high reliability.
Claim：
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PCT：
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